Hello;

When I open myBook.xls, the worksheet column labels are displayed, for a
mysterious reason, as 1, 2, 3, ..., etc.
Now, while myBook.xls is open, when I open any other w/b or even a new w/b,
its column labels are displayed also as 1, 2, 3, ...

Close everything. Now open a w/b that, for whatever reason, displays its
column labels as A, B, C, ..., and re-open myBook.xls. The latter now
displays the column labels as A, B, C, ...

1. Could you please advise on why this is happening ??
2. Are the w/s column labels (alphabet, numeric, Greek symbols, etc.) an
aplication option or a w/b setting ??
3. Where is this option selected, if any ??

Thank you kindly.